Dredge bucket and lip assembly



Dec. 11, 1934. w. H. STIRES DREDGE BUCKET AND LIP ASSEMBLY Filed June15, 1952 Patented Dec. 11, 1934 1,984,322 DREDGE BUCKET AND LIP ASSEMBLYWilliam H. Stires, High Bridge, N. J., assignmto Taylor-Wharton Iron 8;Steel Company, High Bridge, N. J., a corporation of New JerseyApplication June 15, 1932, Serial No. 617,467

18 Claims.

equipped suffered the disadvantage that they were costly in upkeepbecause the lips required to be riveted to place and when worn muchvaluable time was lost in removing the old rivets and in riveting thereplacements, aside from the fact that there was considerable shearingstrain on the rivets which entailed frequent repairs.

Moreover, the construction and arrangement, making foroverlapped andoffset areas or projections,

often resulted in choking of the bucket.

Objects of my invention are to obviate the disadvantages of the oldpractice and to provide a lip that may be secured without the aid ofrivets; is quickly and easily attachable and detachable;

and is free from choking propensity.

The nature, characteristic features and scope of the invention morereadily will be understood from the following description taken inconnection with the accompanying drawing, forming a part hereof, whereinFigure 1 is a longitudinal sectional view of a dredge bucket and lipassembly embodying the improvements.

Fig. 2 is a section on line 2-2 of Fig. 1. Fig. 3 is a section on line3-3 of Fig. 2. Fig. 4 is a section on line 44 of Fig. 1.

Fig. .5 is a section on line 5-5 of Fig. 1; and

Fig. 6 is a section on line 6-6 of Fig. 1.

The bucket 5, except as hereinafter specified,

may be of standard or usual construction.

And

lip 6 may have any desired form of cutting edge '7.

According to my invention the hood, with relation to its accommodationof the lip, is formed on the inside with fore and aft lip seating areasdefined by shoulders 8, which forwardly vanish in the body of the hoodand which rearwardly terminate in recesses or pockets 9, which establisha sort of hinge-like connection for the terminals of the lip and preventspreading thereof. Externally the hood is equipped with paired ribs 10whereby means are provided, which, in conjunction with the hinge lock,rigidly secures the lip to place.

Lip hood and has an outside or apron 11 and inside aprons have rabbetedportions 13 in coincidence 6 is curved to match the curvature of thedepending escutcheon 12. Aprons 12 with rabbeted portions 14 of the hoodso that the lip has shoulders 15 and 16 which, respectively, bear on themarginal wall of the hood and on the inside shoulder 8 thereof. Therounded terminals 17 of the lip enter the anchoring pockets 9 and thushold down the rear of the lip and ,efiec-tively operate to preventspreading thereof. Figs. 4 and 5 aptly show how the hood and insideaprons have mutual rabbeted provisions to insure flush seating of thelip and thereby the avoidance of conditions making for choking.

I am mindful that with a lip and bucket assembly, such as hereinbeforedescribed, riveting or other usual means well might be employed tosecure the front of the lip. However, it is a merit of the inventionthat its simplicity is preserved even to the extent of the front lock.For that purpose the frontof the lip is formed with depending lugs 18 tofit between the ribs 10; and the ribs and lugs have registered eyes toaccommodate a taper pin or bolt 19. Reasonable clearance is allowedbetween the seating surfaces of the lip and bucket so that when thetaper or wedge fastening is applied a rigid fit is established.

It will be manifest from the description and illustration that theimproved assembly not only combines simplicity, sturdiness andefficiency but also makes for clean dumping buckets.

What is claimed as new--is:-

1. A chain dredge bucket having a lip seat, in combination with aseparable lip, means on the bucket and cooperating means on the lip andrelatively engageable so that the lip may be supported on its endextremities in upraised position and then eased through a circumscribedarc to seating position, and means for securing the lip in operativerelation with the bucket.

2. A chain dredge bucket embodying a hood formed with socketsconstituting hinge elements for a straddling lip, and a lip havingterminals formed in coincidence with said sockets and engageabletherewith to permit the lip to be rocked through a circumscribed arc toor from straddling relation with the hood, and means for securing thelip in efiective seating relation.

3. A chain dredge bucket having a hood formed with a lip seat and withsockets below and extending rearwardly of the lip seat and constitutinghinge elements fora lip, and a lip having terminals formed incoincidence with said sockets and engageable therewith whereby the lipmay be rocked through a circumscribed arc to or from straddling relationwith the hood, means for centering the lip, and means for securing it inquickly detachable relation.

4. A chain dredge bucket whereof the hood is kept up to maximum cubiccapacity by a lip having inside and outside straddling portions, thehood having inside rabbeted areas to insure flush seating of the insidestraddling portions and which merge into pockets, and a lip of the typerecited having terminals adapted and arranged to be cradled in suchpockets whereby the lip may be readily swung to or from straddlingposition, and means for securing the lip.

5. A chain dredge bucket whereof the hood is kept up to maximum cubiccapacity by a lip having inside and outside straddling portions, thehood having inside rabbeted areas to insure flush seating of the insidestraddling portions and which merge into pockets, and a lip of the typerecited having terminals adapted and arranged to be cradled in suchpockets whereby the lip may be readily swung to or from straddlingposition, the outside straddling portion and the hood having cooperativeguides for centering the lip.

6. A chain dredge bucket whereof the hood is kept up to maximum cubiccapacity by a lip having inside and outside straddling portions, thehood having inside rabbeted areas to insure flush seating of the insidestraddling portions and which merge into pockets, and a lip of the typerecited having terminals adapted and arranged to be cradled in suchpockets whereby the lip may be readily swung to or from straddlingposition, the outside straddling portion and the hood having cooperativeguides for centering the lip, and means whereby said guides may beavailed of to secure the lip in quickly detachable relation.

7. A chain dredgebucket having a hood formed with a lip seat and withcored pockets below and beyond the lip seat and having outwardly flaringtop walls and constituting one element of a hinge connection for astraddling lip.

8. A chain dredge bucket formed inside with downwardly curved rabbetedareas terminating 'rearwardly in cored pockets adapted to receive a lipof the swinging type.

9. A chain dredge bucket having a lip seat with rabbeted areas inwardlythereof to provide for substantial fiushseating of a straddling lip andhaving undercut outwardly flaring pockets to receive swingingly the endsof the lip, and lip 'centering and locking devices formed externally ofthe bucket.

10. A lip formed with a hood seat defined by spaced apron extensions,said lip having rounded terminals constituting pivots. I

11. A lip formed with a hood seat defined by spaced apron extensions,said lip having centering and locking devices of the quickly releasable,

type, the terminals of the lip having blunt noses constituting pivots.

12. A dredge bucket having a lip seat and provided externally withabutments and internally with pockets having rounded bottoms, and a liphaving end extensions fulcrumed in said pockets and having apronextensions within and without the bucket and having a part engageablewith the abutments.

13. A dredge bucket having a rim seat adapted and arranged for thereception of a straddling p and having below the rim seat undercutpockets constituting hinge elements for the lip, and a lip adapted tothe seat and having outside apron extensions and having inside apronextensions substantially fiush seated with the inside wall of thebucket, said lip having blunt nose terminals to establish hingeconnection with said pockets), and means externally of the pocket andlip for securing them in quickly detachable relation.

14. A dredge bucket having a rim seat adapted and arranged for thereception of a straddling lip and having below the rim seat undercutpockets constituting hinge elements for the lip, and a lip adapted tothe seat and having outside apron extensions and having inside apronextensions substantially flush seated with the inside wall of thebucket, said lip having blunt nose terminals to establish hingeconnection with said pockets, and means on the front of the bucket totighten the lip in normal posturing relation.

15. A chain-dredge bucket in combination with a straddling lip havingaprons which respectively lap the inside and outside walls of thebucket, the inside wall-of the bucket and the ends of the lip havingmated bearings providing for tiltable mounting of the lip so that it maybe applied or removed by rocking it through a circumscribed arc, andinterlocking provisions for the bucket and lip, including means fortightening, the'lip.

16. A chain dredge bucket having its rim and inside wall portions formedto accommodate a replaceable lip, alip contoured to fit the edge ofthebucket and having inside and outside bucket lapping portions, meanson the bucket and cooperating means on the lip'and relatively engageableso that the lip may be initially supported in upraised position and theneased through a circumscribed arc to proper seating relation with thebucket whereupon said meanson the bucket and the cooperating meansfunction as an end lock for the lip, and means for taking up relativelooseness.

17. A chain dredge bucket having lip seating areas for cooperation witha replaceable lip,

posturable in a direction towards the bottom of the bucket, incombination with such lip, pivot members on the bucket and cooperatingpivot members on the lip relatively engageable so that the lip may besustained on end in uplifted position and then swung downwardly to itsseat whereupon said pivot members function as end locks for the lip, andcooperating means on the lip and bucket for compensating for relativelooseness of fit.

18. A dredge bucket comprising a hood having a rim seat and bearingsurfaces below the same for the swinging mounting of a lip, and a liphaving terminals engageable with said bearing surfaces to permit itto bemoved through a cir-' cumscribed are into straddling relation with therun.

. WILLIAM H. STIRES.

